Polyketides
聚酮
🗣️ 情景例句
And you can use my Walkman.
你可以用我的随身听。
I can't take it.
真是受不了。
He was the man who climbed the Leaning Tower of Pisa and dropped various weights from the top,
他就是那个曾经爬上比萨斜塔，从塔顶向下抛掷各种重物的人；